Title :
Power supply for a fast scanning system
Author :
Breitenberger, Gerhard
Author_Institution :
Gesellschaft fuer Schwerionenforschung mbH, Darmstadt, Germany
Abstract :
For the application of heavy ions in radiation therapy, an intensity-controlled beam scanning system has been built consisting of the two magnets fed by a fast controlled power supply. The characteristic data are: current range: -300 A to +300 A; controlled current rise: +or-33 kA/s; output voltage: +or-400 V; accuracy and current ripple: 1 A (peak-peak); and tracking error: none. The construction and final as-built characteristics are presented.<>
Keywords :
biomedical equipment; power supplies to apparatus; radiation therapy; -300 to 300 A; -400 to 400 V; characteristic data; controlled current rise; current range; current ripple; fast controlled power supply; fast scanning system; final as-built characteristics; heavy ions; intensity-controlled beam scanning system; magnets; output voltage; radiation therapy; tracking error; Air gaps; Control systems; Magnetic flux; Magnets; Neoplasms; Particle beams; Power supplies; Structural beams; Switching circuits; Voltage;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Santa Fe, NM, USA
Print_ISBN :
0-7803-0513-2
DOI :
10.1109/NSSMIC.1991.259067
